1998 Acura Integra Ignition System?

Car began having "hard starting" problems ~3 weeks ago. Progressed to cutting out while driving (tach goes to zero and then jumps back up after a second or two), then stalling in traffic and takes a few mintes to get it to re-start. Seems to be "starved" for something as when you let off the starter it sometimes then "catches" and starts. Made a "wheezing" sound twice after not starting. I've replaced the ignition switch (electrical part), the coil, the rotor, and the PGM FI relay in addition to "de-oxiting" a bunch of the big fuse surfaces and a bunch of the wire connectors. All this has helped and now it stalls a lot less and so far as always re-started (prior to these fixes it could just not re-start at all until the next (cooler/wetter?) Morning when it would restart and once again run perfectly until the next "stall" (in my last trip from work of 10 miles it stalled once and took about a minute to re-start). Should I focus on fuel filter, fuel pump or what? Also, the electronic ignition module was replaced about 1.5 years ago. It's driving me nuts and is pretty much un-driveable with this annoying condition! Hate to get rid of it as mechanically it's perfect and drives/runs like new except for this issue. Thanks, Ed